Anesthesia and Consciousness
Since I work on anesthesia machines, I loved this fascinating piece by Devansh Malik on anesthestic agents and what exactly happens when anesthetized. The story starts in the 1840’s, when a popular pastime (in the West) was to inhale ether or nitrous oxide at what was called the “laughing gas parties”: “You’d inhale a bit, feel euphoric, do something embarrassing and everyone would laugh. Simple pleasures of life.” Then people noticed something weird – people inhaling these gases didn’t experience pain (even when they hurt themselves badly). This led a dentist named Horace Wells to wonder if it might have the same effect on the tooth. He had a colleague extract his tooth under nitrous oxide and was happy he didn’t feel any pain. A public demonstration unfortunately didn’t work and the patient did experience pain. Another dentist named William Morton tried it again, with ether during a tooth extraction. It worked. “ Shortly after, a surgeon there removed a tumo...